(2) Proceedings to establish a zone:
(a) May be initiated by the department on its own motion; or
(b) Shall be initiated upon the request of 20 or more landowners or residents or upon request of the governing body of a county or city contiguous to the proposed zone.
(3) A zone shall not be established unless the department first holds a public hearing in the vicinity of the proposed zone. The department shall cause notice of the hearing to be given by publication, not less than seven days prior to the hearing, by at least one insertion in a newspaper of general circulation in the vicinity of the zone.
(4) Before establishing a zone, the department shall seek the approval of the local government whose lands are adjacent or contiguous to the proposed zone. [Formerly 390.668]